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Table 15. System LEDs on the rear view
Description
LED
System ID LED
This LED helps you to visually
1
(blue)
locate the server.
LED on: an error has been
detected on the server. Causes
might include one or more of the
following errors:
• The temperature of the server
• The voltage of the server
System error LED
2
(yellow)
• A fan has been detected to be
• The power supply has a critical
• The power supply is not
System-board-assembly LEDs
The following illustrations show the light-emitting diodes (LEDs) on the system board assembly.
Press the power button to light the LEDs on the system board assembly when the power source has been
removed from the server.
reached the non-critical
temperature threshold.
reached the non-critical
voltage threshold.
running at low speed.
error.
connected to the power.
Action
A system ID button with LED is also located on the front
of the server. You can press the system ID button to turn
on/off or blink the front and rear ID LEDs.
Check system logs or internal error LEDs to identify the
failed part.
Chapter 2
.
Server components
41
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